/*
 * Copyright (c) 2004-2022, University of Oslo
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * Redistributions of source code must retain the above copyright notice, this
 * list of conditions and the following disclaimer.
 *
 * Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 * Neither the name of the HISP project nor the names of its contributors may
 * be used to endorse or promote products derived from this software without
 * specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package org.hisp.dhis.util;

import lombok.extern.slf4j.Slf4j;

@Slf4j
public class Timer {
  private long startTime;

  private boolean printDisabled;

  public Timer disablePrint() {
    this.printDisabled = true;
    return this;
  }

  public Timer start() {
    startTime = System.nanoTime();
    return this;
  }

  public long getSplitTime() {
    return getSplitTime("Split");
  }

  public long getSplitTime(String msg) {
    long endTime = System.nanoTime();

    long time = (endTime - startTime) / 1000;

    if (!printDisabled) {
      log.info("Time: " + time + " micros: " + msg);
    }

    return time;
  }

  public long getTimeInMs() {
    long endTime = System.nanoTime();
    long time = (endTime - startTime) / 1000000;
    return time;
  }

  public long getTimeInS() {
    long endTime = System.nanoTime();
    long time = (endTime - startTime) / 1000000000;
    return time;
  }

  public long getTime(String msg) {
    long time = getSplitTime(msg);

    start();

    return time;
  }

  public long getTime() {
    return getTime("Time");
  }
}
